package com.blog.mapper;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.blog.pojo.User;
import org.springframework.stereotype.Repository;


@Repository
public interface UserMapper extends BaseMapper<User> {

    int selectCount(QueryWrapper<Object> username);
}
